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: /lib/modules/5.11.0-1022-aws/build/arch/arm/include/debug/ [ drwxr-xr-x ]
name : efm32.S /* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013 Pengutronix * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> */ #define UARTn_CMD 0x000c #define UARTn_CMD_TXEN 0x0004 #define UARTn_STATUS 0x0010 #define UARTn_STATUS_TXC 0x0020 #define UARTn_STATUS_TXBL 0x0040 #define UARTn_TXDATA 0x0034 .macro addruart, rx, tmp, tmp2 ldr \rx, =(CONFIG_DEBUG_UART_PHYS) /* * enable TX. The driver might disable it to save energy. We * don't care about disabling at the end as during debug power * consumption isn't that important. */ ldr \tmp, =(UARTn_CMD_TXEN) str \tmp, [\rx, #UARTn_CMD] .endm .macro senduart,rd,rx strb \rd, [\rx, #UARTn_TXDATA] .endm .macro waituartcts,rd,rx .endm .macro waituarttxrdy,rd,rx 1001: ldr \rd, [\rx, #UARTn_STATUS] tst \rd, #UARTn_STATUS_TXBL beq 1001b .endm .macro busyuart,rd,rx 1001: ldr \rd, [\rx, UARTn_STATUS] tst \rd, #UARTn_STATUS_TXC bne 1001b .endm